J4 ›› 2010, Vol. 48 ›› Issue (06): 961-963.

• 数学 • 上一篇    下一篇

具耦合边界源的非线性扩散方程组解的爆破速率估计

韩晓艳, 王泽佳, 杨云   

  1. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2010-01-21 出版日期:2010-11-26 发布日期:2010-11-26
  • 通讯作者: 王泽佳 E-mail:matwzj@jlu.edu.cn

Estimates of Blowup Rates for the Solution to a NonlinearDiffusion Equations Coupled by Boundary Sources

HAN Xiaoyan, WANG Zejia, YANG Yun   

  1. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2010-01-21 Online:2010-11-26 Published:2010-11-26
  • Contact: WANG Zejia E-mail:matwzj@jlu.edu.cn

摘要:

考虑一类具有非线性边界源的耦合退化抛物方程组, 利用积分的方法得到了有限时刻发生爆破解的爆破速率估计. 结果表明, 对于快、 慢扩散不同情形下耦合非线性扩散方程组爆破解的爆破速率估计一致.

关键词: 非线性扩散方程组, 边界源, 爆破速率

Abstract:

We considered a class of nonlinear diffusion equations coupled by boundary sources,  obtained the blowup rates via   integral method and some discussions in two cases. Compared with the known results, our results show that the blowup rates of the blowup solutions for the fastly and slowly diffusive systems are the same.

Key words: nonlinear diffusion equations, boundary source, blowup rate

中图分类号: 

  • O175.26